chore: update vscode engine to match types (#133)

Author: tjkandala

package.json

@@ -11,7 +11,7 @@
     "url": "https://github.com/sourcegraph/sourcegraph-vscode.git"
   },
   "engines": {
-    "vscode": "^1.22.0"
+    "vscode": "^1.52.0"
   },
   "categories": [
     "Other"